Youtube activity of "Diana Pennepacker" (@dianapennepacker6854) on "Free Documentary - Engineering" channel.
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UCumN-0Z5bK_R1Zp_6t18FDw
Commenter youtube id
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Diana Pennepacker
Commenter name
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@dianapennepacker6854
Commenter name id
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"Genius Inventions: Revolutionary Creations for Our Future | Full Series | FD Engineering"
Comments by video
"Mechanical Batteries: The Future of Energy Storage? | FD Engineering"
"Technologies of the Coming Century | Complete Series | FD Engineering"